Tom Lane ebcbc8cfe6 Avoid changing an index's indcheckxmin horizon during REINDEX. ... There can never be a need to push the indcheckxmin horizon forward, since any HOT chains that are actually broken with respect to the index must pre-date its original creation. So we can just avoid changing pg_index altogether during a REINDEX operation. This offers a cleaner solution than my previous patch for the problem found a few days ago that we mustn't try to update pg_index while we are reindexing it. System catalog indexes will always be created with indcheckxmin = false during initdb, and with this modified code we should never try to change their pg_index entries. This avoids special-casing system catalogs as the former patch did, and should provide a performance benefit for many cases where REINDEX formerly caused an index to be considered unusable for a short time. Back-patch to 8.3 to cover all versions containing HOT. Note that this patch changes the API for index_build(), but I believe it is unlikely that any add-on code is calling that directly.		2011-04-19 18:51:03 -04:00
..
backend	Avoid changing an index's indcheckxmin horizon during REINDEX.	2011-04-19 18:51:03 -04:00
bin	Have pg_upgrade properly preserve relfrozenxid in toast tables.	2011-04-08 11:59:38 -04:00
include	Avoid changing an index's indcheckxmin horizon during REINDEX.	2011-04-19 18:51:03 -04:00
interfaces	Silence compiler warning about unused variable on Windows.	2011-04-19 14:54:48 +03:00
makefiles	Allow for LDFLAGS_SL already having a value in Makefile.aix.	2010-07-06 03:41:02 +00:00
pl	Fix PL/Python memory leak involving array slices	2011-03-17 12:32:46 -03:00
port	Tag 9.0.4.	2011-04-15 00:15:53 -03:00
template	Don't try to force use of -no-cpp-precomp on OS X. It's been five years	2010-08-02 04:51:25 +00:00
test	Backport changes to allow building with MinGW 64 bit compiler.	2011-04-09 17:59:27 -04:00
timezone	Update time zone data files to tzdata release 2011f.	2011-04-13 18:04:07 -04:00
tools	Avoid use of mixed slash style paths in arguments to xcopy in MSVC builds.	2011-04-07 22:16:56 -04:00
tutorial	Remove copyright mention of Andrew Yu, per author's permission.	2010-02-02 18:52:02 +00:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:06 +02:00
bcc32.mak	Remove old-style win32 client-only visual c++ build infrastructure for everything except	2007-03-05 14:18:38 +00:00
DEVELOPERS	Replace a couple of references to files that no longer exist in the source	2009-05-04 08:08:47 +00:00
Makefile	Rethink the way walreceiver is linked into the backend. Instead than shoving	2010-01-20 09:16:24 +00:00
Makefile.global.in	Accept slightly grotty coding in Makefile.global in order to keep the -L	2010-07-06 22:03:05 +00:00
Makefile.shlib	Still more third thoughts: when linking shared libraries, LDFLAGS probably	2010-07-06 03:55:33 +00:00
nls-global.mk	Avoid error from mkdir if no languages are to be installed	2010-05-13 14:35:28 +00:00
win32.mak	Update supported standalone VC++ version to 7.1+ only, and fix	2007-08-03 10:47:11 +00:00